A while back I posted a loom knitting video I found on how to use the rake loom or long loom to knit a double sided two color scarf. I get questions on how to cast on and how to cast off as well as other questions on how to accomplish the two-sided scarf so I am including two more videos I have found that helped me and cleared up my questions and may answer some of the questions others may have on how to loom knit a two-sided two color scarf.
The first loom knitting video was made and shared under the name Ambrosia Voyeur and the second is another from Maria Eugenia Tovar in which she starts you at the beginning cast on. I think between the three you will be able to learn how to use your loom to knit two-sided panels you can use as to make scarves blankets or anything else a creative mind can think out. Check them both out.